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Side by Side Diff: ppapi/api/ppb_input_event.idl

Issue 7701004: Fixed spelling errors and changed all references to PP_Resource to be the (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 3 months ago
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1 /* Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 /* Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 * Use of this source code is governed by a BSD-style license that can be 2 * Use of this source code is governed by a BSD-style license that can be
3 * found in the LICENSE file. 3 * found in the LICENSE file.
4 */ 4 */
5 5
6 /** 6 /**
7 * This file defines the Input Event interfaces. 7 * This file defines the Input Event interfaces.
8 */ 8 */
9 9
10 label Chrome { 10 label Chrome {
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314 * <code>PP_InputEvent_Class</code> that identify the classes of events the 314 * <code>PP_InputEvent_Class</code> that identify the classes of events the
315 * instance is no longer interested in. 315 * instance is no longer interested in.
316 */ 316 */
317 void ClearInputEventRequest([in] PP_Instance instance, 317 void ClearInputEventRequest([in] PP_Instance instance,
318 [in] uint32_t event_classes); 318 [in] uint32_t event_classes);
319 319
320 /** 320 /**
321 * IsInputEvent() returns true if the given resource is a valid input event 321 * IsInputEvent() returns true if the given resource is a valid input event
322 * resource. 322 * resource.
323 * 323 *
324 * @param[in] resource A <code>PP_Resource</code>. 324 * @param[in] resource A <code>PP_Resource</code> corresponding to a generic
325 * resource.
325 * 326 *
326 * @return True if the given resource is a valid input event 327 * @return <code>PP_TRUE</code> if the given resource is a valid input event
327 * resource. 328 * resource.
328 */ 329 */
329 PP_Bool IsInputEvent([in] PP_Resource resource); 330 PP_Bool IsInputEvent([in] PP_Resource resource);
330 331
331 /** 332 /**
332 * GetType() returns the type of input event for the given input event 333 * GetType() returns the type of input event for the given input event
333 * resource. 334 * resource.
334 * 335 *
335 * @param[in] resource A <code>PP_Resource</code> containing the input event. 336 * @param[in] resource A <code>PP_Resource</code> corresponding to an input
337 * event.
336 * 338 *
337 * @return A <code>PP_InputEvent_Type</code> if its a valid input event or 339 * @return A <code>PP_InputEvent_Type</code> if its a valid input event or
338 * <code>PP_INPUTEVENT_TYPE_UNDEFINED</code> if the resource is invalid. 340 * <code>PP_INPUTEVENT_TYPE_UNDEFINED</code> if the resource is invalid.
339 */ 341 */
340 PP_InputEvent_Type GetType([in] PP_Resource event); 342 PP_InputEvent_Type GetType([in] PP_Resource event);
341 343
342 /** 344 /**
343 * GetTimeStamp() Returns the time that the event was generated. This will be 345 * GetTimeStamp() Returns the time that the event was generated. This will be
344 * before the current time since processing and dispatching the event has 346 * before the current time since processing and dispatching the event has
345 * some overhead. Use this value to compare the times the user generated two 347 * some overhead. Use this value to compare the times the user generated two
346 * events without being sensitive to variable processing time. 348 * events without being sensitive to variable processing time.
347 * 349 *
348 * @param[in] resource A <code>PP_Resource</code> containing the event. 350 * @param[in] resource A <code>PP_Resource</code> corresponding to the event.
349 * 351 *
350 * @return The return value is in time ticks, which is a monotonically 352 * @return The return value is in time ticks, which is a monotonically
351 * increasing clock not related to the wall clock time. It will not change 353 * increasing clock not related to the wall clock time. It will not change
352 * if the user changes their clock or daylight savings time starts, so can 354 * if the user changes their clock or daylight savings time starts, so can
353 * be reliably used to compare events. This means, however, that you can't 355 * be reliably used to compare events. This means, however, that you can't
354 * correlate event times to a particular time of day on the system clock. 356 * correlate event times to a particular time of day on the system clock.
355 */ 357 */
356 PP_TimeTicks GetTimeStamp([in] PP_Resource event); 358 PP_TimeTicks GetTimeStamp([in] PP_Resource event);
357 359
358 /** 360 /**
359 * GetModifiers() returns a bitfield indicating which modifiers were down 361 * GetModifiers() returns a bitfield indicating which modifiers were down
360 * at the time of the event. This is a combination of the flags in the 362 * at the time of the event. This is a combination of the flags in the
361 * <code>PP_InputEvent_Modifier</code> enum. 363 * <code>PP_InputEvent_Modifier</code> enum.
362 * 364 *
363 * @param[in] resource A <code>PP_Resource</code> containing the input event. 365 * @param[in] resource A <code>PP_Resource</code> corresponding to an input
366 * event.
364 * 367 *
365 * @return The modifiers associated with the event, or 0 if the given 368 * @return The modifiers associated with the event, or 0 if the given
366 * resource is not a valid event resource. 369 * resource is not a valid event resource.
367 */ 370 */
368 uint32_t GetModifiers([in] PP_Resource event); 371 uint32_t GetModifiers([in] PP_Resource event);
369 }; 372 };
370 373
371 /** 374 /**
372 * The <code>PPB_MouseInputEvent</code> interface contains pointers to several 375 * The <code>PPB_MouseInputEvent</code> interface contains pointers to several
373 * functions related to mouse input events. 376 * functions related to mouse input events.
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405 [in] PP_InputEvent_Type type, 408 [in] PP_InputEvent_Type type,
406 [in] PP_TimeTicks time_stamp, 409 [in] PP_TimeTicks time_stamp,
407 [in] uint32_t modifiers, 410 [in] uint32_t modifiers,
408 [in] PP_InputEvent_MouseButton mouse_button, 411 [in] PP_InputEvent_MouseButton mouse_button,
409 [in] PP_Point mouse_position, 412 [in] PP_Point mouse_position,
410 [in] int32_t click_count); 413 [in] int32_t click_count);
411 414
412 /** 415 /**
413 * IsMouseInputEvent() determines if a resource is a mouse event. 416 * IsMouseInputEvent() determines if a resource is a mouse event.
414 * 417 *
415 * @param[in] resource A <code>PP_Resource</code> containing the event. 418 * @param[in] resource A <code>PP_Resource</code> corresponding to an event.
416 * 419 *
417 * @return <code>PP_TRUE</code> if the given resource is a valid mouse input 420 * @return <code>PP_TRUE</code> if the given resource is a valid mouse input
418 * event, otherwise <code>PP_FALSE</code>. 421 * event, otherwise <code>PP_FALSE</code>.
419 */ 422 */
420 PP_Bool IsMouseInputEvent([in] PP_Resource resource); 423 PP_Bool IsMouseInputEvent([in] PP_Resource resource);
421 424
422 /** 425 /**
423 * GetButton() returns the mouse button that generated a mouse down or up 426 * GetButton() returns the mouse button that generated a mouse down or up
424 * event. 427 * event.
425 * 428 *
426 * @param[in] mouse_event A <code>PP_Resource</code> containing the mouse 429 * @param[in] mouse_event A <code>PP_Resource</code> corresponding to a
427 * event. 430 * mouse event.
428 * 431 *
429 * @return The mouse button associated with mouse down and up events. This 432 * @return The mouse button associated with mouse down and up events. This
430 * value will be <code>PP_EVENT_MOUSEBUTTON_NONE</code> for mouse move, 433 * value will be <code>PP_EVENT_MOUSEBUTTON_NONE</code> for mouse move,
431 * enter, and leave events, and for all non-mouse events. 434 * enter, and leave events, and for all non-mouse events.
432 */ 435 */
433 PP_InputEvent_MouseButton GetButton([in] PP_Resource mouse_event); 436 PP_InputEvent_MouseButton GetButton([in] PP_Resource mouse_event);
434 437
435 /** 438 /**
436 * GetPosition() returns the pixel location of a mouse input event. 439 * GetPosition() returns the pixel location of a mouse input event.
437 * 440 *
438 * @param[in] mouse_event A <code>PP_Resource</code> containing the mouse 441 * @param[in] mouse_event A <code>PP_Resource</code> corresponding to an
439 * event. 442 * mouse event.
440 * 443 *
441 * @return The point associated with the mouse event, relative to the upper- 444 * @return The point associated with the mouse event, relative to the upper-
442 * left of the instance receiving the event. These values can be negative for 445 * left of the instance receiving the event. These values can be negative for
443 * mouse drags. The return value will be (0, 0) for non-mouse events. 446 * mouse drags. The return value will be (0, 0) for non-mouse events.
444 */ 447 */
445 [returnByValue] PP_Point GetPosition([in] PP_Resource mouse_event); 448 [returnByValue] PP_Point GetPosition([in] PP_Resource mouse_event);
446 449
447 /** 450 /**
448 * TODO(brettw) figure out exactly what this means. 451 * TODO(brettw) figure out exactly what this means.
449 */ 452 */
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485 PP_Resource Create([in] PP_Instance instance, 488 PP_Resource Create([in] PP_Instance instance,
486 [in] PP_TimeTicks time_stamp, 489 [in] PP_TimeTicks time_stamp,
487 [in] uint32_t modifiers, 490 [in] uint32_t modifiers,
488 [in] PP_FloatPoint wheel_delta, 491 [in] PP_FloatPoint wheel_delta,
489 [in] PP_FloatPoint wheel_ticks, 492 [in] PP_FloatPoint wheel_ticks,
490 [in] PP_Bool scroll_by_page); 493 [in] PP_Bool scroll_by_page);
491 494
492 /** 495 /**
493 * IsWheelInputEvent() determines if a resource is a wheel event. 496 * IsWheelInputEvent() determines if a resource is a wheel event.
494 * 497 *
495 * @param[in] wheel_event A <code>PP_Resource</code> containing the event. 498 * @param[in] wheel_event A <code>PP_Resource</code> corresponding to an
499 * event.
496 * 500 *
497 * @return <code>PP_TRUE</code> if the given resource is a valid wheel input 501 * @return <code>PP_TRUE</code> if the given resource is a valid wheel input
498 * event. 502 * event.
499 */ 503 */
500 PP_Bool IsWheelInputEvent([in] PP_Resource resource); 504 PP_Bool IsWheelInputEvent([in] PP_Resource resource);
501 505
502 /** 506 /**
503 * GetDelta() returns the amount vertically and horizontally the user has 507 * GetDelta() returns the amount vertically and horizontally the user has
504 * requested to scroll by with their mouse wheel. A scroll down or to the 508 * requested to scroll by with their mouse wheel. A scroll down or to the
505 * right (where the content moves up or left) is represented as positive 509 * right (where the content moves up or left) is represented as positive
506 * values, and a scroll up or to the left (where the content moves down or 510 * values, and a scroll up or to the left (where the content moves down or
507 * right) is represented as negative values. 511 * right) is represented as negative values.
508 * 512 *
509 * This amount is system dependent and will take into account the user's 513 * This amount is system dependent and will take into account the user's
510 * preferred scroll sensitivity and potentially also nonlinear acceleration 514 * preferred scroll sensitivity and potentially also nonlinear acceleration
511 * based on the speed of the scrolling. 515 * based on the speed of the scrolling.
512 * 516 *
513 * Devices will be of varying resolution. Some mice with large detents will 517 * Devices will be of varying resolution. Some mice with large detents will
514 * only generate integer scroll amounts. But fractional values are also 518 * only generate integer scroll amounts. But fractional values are also
515 * possible, for example, on some trackpads and newer mice that don't have 519 * possible, for example, on some trackpads and newer mice that don't have
516 * "clicks". 520 * "clicks".
517 * 521 *
518 * @param[in] wheel_event A <code>PP_Resource</code> containing the wheel 522 * @param[in] wheel_event A <code>PP_Resource</code> corresponding to a wheel
519 * event. 523 * event.
520 * 524 *
521 * @return The vertical and horizontal scroll values. The units are either in 525 * @return The vertical and horizontal scroll values. The units are either in
522 * pixels (when scroll_by_page is false) or pages (when scroll_by_page is 526 * pixels (when scroll_by_page is false) or pages (when scroll_by_page is
523 * true). For example, y = -3 means scroll up 3 pixels when scroll_by_page 527 * true). For example, y = -3 means scroll up 3 pixels when scroll_by_page
524 * is false, and scroll up 3 pages when scroll_by_page is true. 528 * is false, and scroll up 3 pages when scroll_by_page is true.
525 */ 529 */
526 PP_FloatPoint GetDelta([in] PP_Resource wheel_event); 530 PP_FloatPoint GetDelta([in] PP_Resource wheel_event);
527 531
528 /** 532 /**
529 * GetTicks() returns the number of "clicks" of the scroll wheel 533 * GetTicks() returns the number of "clicks" of the scroll wheel
530 * that have produced the event. The value may have system-specific 534 * that have produced the event. The value may have system-specific
531 * acceleration applied to it, depending on the device. The positive and 535 * acceleration applied to it, depending on the device. The positive and
532 * negative meanings are the same as for GetDelta(). 536 * negative meanings are the same as for GetDelta().
533 * 537 *
534 * If you are scrolling, you probably want to use the delta values. These 538 * If you are scrolling, you probably want to use the delta values. These
535 * tick events can be useful if you aren't doing actual scrolling and don't 539 * tick events can be useful if you aren't doing actual scrolling and don't
536 * want or pixel values. An example may be cycling between different items in 540 * want or pixel values. An example may be cycling between different items in
537 * a game. 541 * a game.
538 * 542 *
539 * @param[in] wheel_event A <code>PP_Resource</code> containing the wheel 543 * @param[in] wheel_event A <code>PP_Resource</code> corresponding to a wheel
540 * event. 544 * event.
541 * 545 *
542 * @return The number of "clicks" of the scroll wheel. You may receive 546 * @return The number of "clicks" of the scroll wheel. You may receive
543 * fractional values for the wheel ticks if the mouse wheel is high 547 * fractional values for the wheel ticks if the mouse wheel is high
544 * resolution or doesn't have "clicks". If your program wants discrete 548 * resolution or doesn't have "clicks". If your program wants discrete
545 * events (as in the "picking items" example) you should accumulate 549 * events (as in the "picking items" example) you should accumulate
546 * fractional click values from multiple messages until the total value 550 * fractional click values from multiple messages until the total value
547 * reaches positive or negative one. This should represent a similar amount 551 * reaches positive or negative one. This should represent a similar amount
548 * of scrolling as for a mouse that has a discrete mouse wheel. 552 * of scrolling as for a mouse that has a discrete mouse wheel.
549 */ 553 */
550 PP_FloatPoint GetTicks([in] PP_Resource wheel_event); 554 PP_FloatPoint GetTicks([in] PP_Resource wheel_event);
551 555
552 /** 556 /**
553 * GetScrollByPage() indicates if the scroll delta x/y indicates pages or 557 * GetScrollByPage() indicates if the scroll delta x/y indicates pages or
554 * lines to scroll by. 558 * lines to scroll by.
555 * 559 *
556 * @param[in] wheel_event A <code>PP_Resource</code> containing the wheel 560 * @param[in] wheel_event A <code>PP_Resource</code> corresponding to a wheel
557 * event. 561 * event.
558 * 562 *
559 * @return <code>PP_TRUE</code> if the event is a wheel event and the user is 563 * @return <code>PP_TRUE</code> if the event is a wheel event and the user is
560 * scrolling by pages. <code>PP_FALSE</code> if not or if the resource is not 564 * scrolling by pages. <code>PP_FALSE</code> if not or if the resource is not
561 * a wheel event. 565 * a wheel event.
562 */ 566 */
563 PP_Bool GetScrollByPage([in] PP_Resource wheel_event); 567 PP_Bool GetScrollByPage([in] PP_Resource wheel_event);
564 }; 568 };
565 569
566 /** 570 /**
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599 PP_Resource Create([in] PP_Instance instance, 603 PP_Resource Create([in] PP_Instance instance,
600 [in] PP_InputEvent_Type type, 604 [in] PP_InputEvent_Type type,
601 [in] PP_TimeTicks time_stamp, 605 [in] PP_TimeTicks time_stamp,
602 [in] uint32_t modifiers, 606 [in] uint32_t modifiers,
603 [in] uint32_t key_code, 607 [in] uint32_t key_code,
604 [in] PP_Var character_text); 608 [in] PP_Var character_text);
605 609
606 /** 610 /**
607 * IsKeyboardInputEvent() determines if a resource is a keyboard event. 611 * IsKeyboardInputEvent() determines if a resource is a keyboard event.
608 * 612 *
609 * @param[in] resource A <code>PP_Resource</code> containing the event. 613 * @param[in] resource A <code>PP_Resource</code> corresponding to an event.
610 * 614 *
611 * @return <code>PP_TRUE</code> if the given resource is a valid input event. 615 * @return <code>PP_TRUE</code> if the given resource is a valid input event.
612 */ 616 */
613 PP_Bool IsKeyboardInputEvent([in] PP_Resource resource); 617 PP_Bool IsKeyboardInputEvent([in] PP_Resource resource);
614 618
615 /** 619 /**
616 * GetKeyCode() returns the DOM keyCode field for the keyboard event. 620 * GetKeyCode() returns the DOM keyCode field for the keyboard event.
617 * Chrome populates this with the Windows-style Virtual Key code of the key. 621 * Chrome populates this with the Windows-style Virtual Key code of the key.
618 * 622 *
619 * @param[in] key_event A <code>PP_Resource</code> containing the keyboard 623 * @param[in] key_event A <code>PP_Resource</code> corresponding to a
620 * event. 624 * keyboard event.
621 * 625 *
622 * @return The DOM keyCode field for the keyboard event. 626 * @return The DOM keyCode field for the keyboard event.
623 */ 627 */
624 uint32_t GetKeyCode([in] PP_Resource key_event); 628 uint32_t GetKeyCode([in] PP_Resource key_event);
625 629
626 /** 630 /**
627 * GetCharacterText() returns the typed character as a UTF-8 string for the 631 * GetCharacterText() returns the typed character as a UTF-8 string for the
628 * given character event. 632 * given character event.
629 * 633 *
630 * @param[in] character_event A <code>PP_Resource</code> containing the 634 * @param[in] character_event A <code>PP_Resource</code> corresponding to a
631 * keyboard event. 635 * keyboard event.
632 * 636 *
633 * @return A string var representing a single typed character for character 637 * @return A string var representing a single typed character for character
634 * input events. For non-character input events the return value will be an 638 * input events. For non-character input events the return value will be an
635 * undefined var. 639 * undefined var.
636 */ 640 */
637 PP_Var GetCharacterText([in] PP_Resource character_event); 641 PP_Var GetCharacterText([in] PP_Resource character_event);
638 }; 642 };
639 643
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